| http://www.w3.org/ns/prov#value | - ly filling said device and substantially removing atmospheric air from said device and particularly from contact with said usable material (50, 50 c, 50 d), the sum of said initial volume of usable material (50, 50 c, 50 d) plus said initial volume of displacement matter (52, 52 a, 52 d) defining a total intial material volume; removing at least some volume of said usable material (50, 50 c, 50 d)
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